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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Effective seroconversion and safety following the pandemic influenza vaccination (anti-H1N1) in patients with juvenile idiopathic arthritis

Texto completo
Aikawa, N. E. [1, 2] ; Campos, L. M. A. [2] ; Goldenstein-Schainberg, C. [1] ; Saad, C. G. S. [1] ; Ribeiro, A. C. [1] ; Bueno, C. [1] ; Precioso, A. R. [3] ; Timenetsky, MdoC [4] ; Silva, C. A. A. [1, 2] ; Bonfa, E. [1]
Número total de Autores: 10
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Div Rheumatol, Sao Paulo - Brazil
[2] Univ Sao Paulo, Paediat Rheumatol Unit, Sao Paulo - Brazil
[3] Univ Sao Paulo, Butantan Inst, Sao Paulo - Brazil
[4] Univ Sao Paulo, Adolpho Lutz Inst, Sao Paulo - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: SCANDINAVIAN JOURNAL OF RHEUMATOLOGY; v. 42, n. 1, p. 34-40, 2013.
Citações Web of Science: 15

Objectives: To assess the vaccine response in juvenile idiopathic arthritis (JIA) as an extension of previous observation of immunogenicity and safety of a non-adjuvanted influenza A H1N1/2009 vaccine in a large population of juvenile rheumatic diseases. Moreover, to assess the possible influence of demographic data, disease subtypes, disease activity, and treatment on immunogenicity and the potential deleterious effect of the vaccine in the disease itself, particularly in the number of arthritis and inflammatory markers. Methods: A total of 95 patients with JIA and 91 healthy controls were evaluated before and 21 days after vaccination, and serology for anti-H1N1 was performed by haemagglutination inhibition assay (HIA). Patient and physician visual analogue scales (VAS), Childhood Health Assessment Questionnaire (CHAQ), number of active joints, acute phase reactants, and treatments were evaluated before and after vaccination. Adverse events were also reported. Results: JIA patients and controls were comparable regarding mean current age (14.9 +/- 3.2 vs. 14.6 +/- 3.7 years, p = 0.182). After vaccination, the seroconversion rate was significantly lower in JIA patients compared to controls (83.2% vs. 95.6%, p = 0.008), particularly in the polyarticular subtype (80% vs. 95.6%, p = 0.0098). Of note, JIA subtypes, number of active joints, acute phase reactants, CHAQ, patient and physician VAS, and use of disease-modifying anti-rheumatic drugs (DMARDs)/immunosuppressive drugs were similar between seroconverted and non-seroconverted patients (p > 0.05). Regarding vaccine safety, no deterioration was observed in the number of active joints and acute phase reactants during the study period. Conclusion: Influenza A H1N1/2009 vaccination in JIA induces a lower but effective protective antibody response probably independent of disease parameters and treatment with an adequate disease safety profile. (AU)

Processo FAPESP: 10/10749-0 - Vacina anti-influenza H1N1/2009 em pacientes com doenças reumáticas autoimunes
Beneficiário:Eloisa Silva Dutra de Oliveira Bonfá
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 09/51897-5 - Terapia anti-TNF em doenças auto-imunes reumatológicas: abordagem de aspectos peculiares
Beneficiário:Eloisa Silva Dutra de Oliveira Bonfá
Linha de fomento: Auxílio à Pesquisa - Temático